The sectarian Arabs styled non-Arabs as mawali. Rules were laid down banning marriage of Arabs with them based on fabricated hadiths.
Arabs are Arabs’ equals. Mawalis are equals of Mawalis. O Arabs those among you who marry Mawalis are considered to have committed a punishable offense
O Arab, marry your equal, never marry Negroes for fear of corrupting your offspring. For Negroes are a crooked race, and their issue will be crooked and disabled.
What we are trying to convey here is the fact that all so-called sources of Islam other than the Quran are unreliable. The only dependable and reliable book is the Quran. You will find below such a derogatory hadith about Turks:
Unless you are attacked by Turks, don’t meddle with them. For if they like you, they will strip you of your possessions. If they dislike you, they will kill you.
Despite the fact that they have been co-religionists, the Turks and the Arabs have never ceased to be each other’s enemy because of such invented stories and irrelevant provocations. This hostility has been to the detriment of both sides; but opportunists, like the English and the French, took advantage of this. Napoleon exploited Arab nationalism; he gave the semblance of being pro-Islamist; he entered Arab lands and made Turks seem to be hostile to Islam and succeeded in staying in Egypt thanks to this policy. The English capitalized on the Turco-Arab antagonism with a view to dividing the Ottoman Empire and indulging in petroleum exploitation. On the Turkish side, absurd attributes, almost swear words, have been ascribed to the Arabs. What is still worse has been the fact that words spoken against Turks were ascribed to the Prophet’s hadiths. Many prominent Turkish scholars, who were in effect ignorant in many respects, carried things to extremes and became fervent adulators of Arabs themselves. The most renowned hadiths about the Turks have represented the Turks as Agog and Magog.
Before war is fought and won against the Turks (Agog and Magog) with small eyes, red cheeks whose faces are of hardened skin like shields, the Day of Judgment will tarry.
Bukhari K. Cihad, Muslim K. Fian